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Finding the Fourth Proportional to 702,424.07, 969,346.93 and 380,136.50

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Solution

The fourth proportional to 702,424.07, 969,346.93 and 380,136.50 is: 524,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,424.07 : 969,346.93 = 380,136.50 : x
  2. Step 2: Convert to fraction form
    702,424.07/969,346.93 = 380,136.50/x
  3. Step 3: Cross multiply
    702,424.07x = 969,346.93 × 380,136.50
  4. Step 4: Simplify right side
    702,424.07x = 368,484,150,728.97
  5. Step 5: Solve for x
    x = 368,484,150,728.97/702,424.07
  6. Step 6: Final answer
    x = 524,589.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.